(2639) Planman

from Wikipedia, the free encyclopedia
Asteroid
(2639) Planman
Properties of the orbit ( animation )
Orbit type Main belt asteroid
Major semi-axis 2.4462  AU
eccentricity 0.1913
Perihelion - aphelion 1.9783 AU - 2.9141 AU
Inclination of the orbit plane 9.6634 °
Sidereal period 3,826 a
Mean orbital velocity 19.04 km / s
Physical Properties
Medium diameter ? km
Albedo ?
Rotation period ? H
Absolute brightness 13.1 mag
Spectral class ?
history
Explorer Yrjö Väisälä
Date of discovery April 9, 1940
Another name 1940 GN, 1959 GL, 1948 NB
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(2639) Planman is an asteroid of the main belt , which on 9 April 1940 by the Finnish astronomer Yrjö Väisälä at Turku was discovered.

The name of the asteroid was chosen in honor of the Swedish astronomer Anders Planman .

See also